Preparation of a needle probe with a sharp tip and high aspect ratio geometry by an electrochemical etching method

Ching An Huang*, J. H. Chang, S. Y. Yang, C. C. Yang

*此作品的通信作者

研究成果: 期刊稿件文章同行評審

8 引文 斯高帕斯(Scopus)

摘要

In this study, an electrochemical etching method was used to fabricate a fine needle probe with high aspect ratio. The needle probe was made of quenched and tempered high-carbon tool steel, SK 4. The needle electrode was preformed with turning machine, and then etched in the NH4HF2-based etchant. Owing to deactivation at the needle tip through surface adsorption of chemical species, the tip shape and contour of preformed needle can be maintained during anodic dissolution in the etchant. The anodic dissolution behavior of the needle probe can be realized with cyclic voltammetry test and Auger electron spectrometer analysis.

原文英語
頁(從 - 到)4294-4302
頁數9
期刊Corrosion Science
48
發行號12
DOIs
出版狀態已出版 - 12 2006

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